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3 years ago

You are a plumber, and you are repairing a toilet leak. The job should take 0.9 hours. About how many minutes will it

Mathematics

2 answers:

monitta3 years ago

6 0

Answer:

Step-by-step explanation:

multiply 60 by 0.9 and you get 54..?

anzhelika [568]3 years ago

3 0

Answer:

Step-by-step explanation:

0.1 is 10% of 1 and was subtracted off so we subtract 10% off 60 so 60 x 10% = 6

60 - 6 = 54

Hope this helps can I have brainliest

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25 - 4x = 15 - 3x + 10 - x

Ganezh [65]

25 - 4x = 15 - 3x + 10 - x

combine like terms

25 -4x = 25 -4x

add 4x to each side

25 = 5x

x= all real numbers

Answer: infinite solutions

6 0

3 years ago

Needing help with this!

Sonbull [250]

assuming the scale is by 1,

a) the slope is rise/run so it rises 3 units and moves 4 units right therefore the slope is 3/4

b) the y intercept is where the line crosses the y axis so by looking at the graph you can tell that the y int is 1

c) and the equation is made up of the slope and the y intercept: y= 3/4x + 1

6 0

3 years ago

PLZ HELP!!!!!! angle A and angle C are right triangles. angle < p =__ degrees

vredina [299]

Answer:

p=59.19°

Step-by-step explanation:

We first find the length BD

BD=√(6²+5²)=√61

Using Pythagorean theorem,we find p by:

cos(p°)=4/√61

p=cos^-1(4/√61)

p=59.19°

4 0

3 years ago

You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta

vladimir1956 [14]

Answer:

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

Step-by-step explanation:

The slope of the tangent line at a point of the curve is:

$m = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

$m = -\frac{\cos 2\theta}{\sin \theta}$

The tangent line is horizontal when $m = 0$ . Then:

$\cos 2\theta = 0$

$2\theta = \cos^{-1}0$

$\theta = \frac{1}{2}\cdot \cos^{-1} 0$

$\theta = \frac{1}{2}\cdot \left(\frac{\pi}{2}+i\cdot \pi \right)$ , for all $i \in \mathbb{N}_{O}$

$\theta = \frac{\pi}{4} + i\cdot \frac{\pi}{2}$ , for all $i \in \mathbb{N}_{O}$

The first four solutions are:

x: $\sqrt{2}$ $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$

y: 1 -1 1 -1

The solutions listed from the smallest to the greatest are:

x: $-\sqrt{2}$ $-\sqrt{2}$ $\sqrt{2}$ $\sqrt{2}$

y: -1 1 -1 1

6 0

3 years ago

Triangle ABC has side length of 8 inches 12 inches and 15 inches which of the following could be the side lengths of a triangle

Step2247 [10]

Answer:

D is the answer

Step-by-step explanation:

3 0

3 years ago